redistribute OSFP into BGP from two different OSPF area

aparikh — Sun, 03 Mar 2019 17:48:31 GMT

HOw to interconnect following network? I have problem with router r5. I do not know what is wrong. Attaching configuration from all five routers. Thanks for the help

I have following network.

0SPF(R1)-->BGP(R2)<-->BGP(R3)-->BGP(R4)-->OSPF(R5)

Re: redistribute OSFP into BGP from two different OSPF area

johansens — Tue, 14 Jun 2005 07:30:51 GMT

It would help to know exactly what you hope to accomplish and what you see as the problem.

The reason I say this is because I can see some problems in the config, but I don't know if this is the problem you see.

First of all a question: Is this internally in your network? You are using EBGP instead of iBGP because of a necessity or for convenience? 🙂

You are not redistributing BGP into OSPF at R4. This would lead to R5 not receiveing any of the R1- (and R2, R3 and R4) routes.

Also: When you do a "redistribute ospf" in a BGP-process, you only get the inter- and intra-area routes. If you want external and NSSA routes redistributed as well (all OSPF routes), add the "external" keywords like this: "redistribute ospf 1 match internal external 1 external 2"

Check out this page on redistributing OSPF into BGP:

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800943c5.shtml

If you are having problems redistributing BGP into OSPF when using iBGP (and therefore are using EBGP), check out this page:

http://www.ciscotaccc.com/iprout/showcase?case=K10794084

topic redistribute OSFP into BGP from two different OSPF area in Routing and SD-WAN

redistribute OSFP into BGP from two different OSPF area

Re: redistribute OSFP into BGP from two different OSPF area